Chapter 2 Installation and Configuration
NI PXI-1056 User Manual 2-2 ni.com
personnel operating the chassis. Furthermore, damage or fire may
occur if replacement parts are unsuitable.
•Modification—Do not modify any part of the chassis from its original
condition. Unsuitable modifications may result in safety hazards.
Chassis Cooling Considerations
The PXI-1056 is designed to operate on a bench or in an instrument rack.
Determine how you want to use the PXI-1056 and follow the appropriate
installation instructions.

Providing Adequate Clearance

Apertures in the rear and along the left side of the chassis facilitate power
supply and module cooling. Air enters through a filter and fan inlet in the
right rear of the chassis and exits through the left side of the chassis, as
shown in Figure 2-1. Place the PXI-1056 on a bench top or in an instrument
rack so that the fan (air inlet) and the air outlet apertures along the right side
of the chassis have adequate ventilation. Keep other equipment a minimum
of 76.2 mm (3 in.) away from the air inlet on the rear of the chassis.
When rack mounting the PXI-1056, provide at least 44.5 mm (1.75 in.)
clearance on the right side of the unit for adequate venting. High-power
applications may require additional clearance.